RadioLINK devices instructing them to exit thehouse code mode.Note: Some RadioLINK devices do not supportthe on demand exit house code feature. You mayallow them to automatically exit house codeafter the time period or if you wish, you can doit manually. Consult the individual RadioLINKdevice manual for further instructions.Check the communication by pressing the test/hush button for up to 20 seconds on each unitin turn. The red light will flash, the Alarm willsound and blue light on the RadioLINK Basesidewall will illuminate continuously for around3.5 seconds. All other Alarms should sound (thismay take up to 20 seconds).If all the units are not communicating consultthe “Troubleshooting the RF link” section forinformation on how to resolve the problem.15BLUE LIGHTHOUSE CODE SWITCH